That's a very good point! I can't say I've ever roasted my own coffee, so it's something I've not experienced in person. I hear you can buy green beans and roast them with a popcorn machine though, which sounds kinda fun to try.
The above describes creating a bread-machine "Coretto" roaster. (I still have no idea why it's named that). A heat gun (for paint drying) from Harbor Freight (~$15, it's almost always on sale) is used for the heat. The bread machine is torn apart so it permanently spins, and never turns on the heating element.
After using it manually a bit you'll get the bug too. Eventually you'll want to control it electronically. I still have to actually do it...
